[linux-dvb] Re: DVB-C QAM128 errors and signal strength

[Jarkko Lavinen <jlavi@iki.fi>]

> 1. How much is the automatic frequency correction (AFC) adjusting the
> frequency with QAM64 and QAM128 channels?  Use the getfrontend.c from

For QAM64 (TV1 & MTV3 tested): ves1820.c: AFC (3) -17285Hz
For QAM128 (Nelonen tested):   ves1820.c: AFC (3) -20214Hz

> 2. This patch was added at one point to the driver:
> -     static const u8 reg0x01 [] = {  140,  140,  106,  120,   92 };
> +	static const u8 reg0x01 [] = {  140,  140,  106,  100,   92 };

Tried. I cannot tune QAM128 frequencies with the old code (register value 
120). QAM64 tunes and there is no difference in the error rate.

Jarkko


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